miro Crystal/Magic 20 twin PCI

Each chip have its own 2MB memory (addon PCB could have only 1MB). Cards using various combinations of S3 chips - 86C868-P (DRAM), 86C864-P (DRAM), 86C968-P (VRAM), 86C964-P (VRAM).Sold as miroCRYSTAL 20SD twin and miroMAGIC 20SV twin.